Home / 20,505.24-30,794.94-18,943.56

Finding the Fourth Proportional to 20,505.24, 30,794.94 and 18,943.56

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Solution

The fourth proportional to 20,505.24, 30,794.94 and 18,943.56 is: 28,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505.24 : 30,794.94 = 18,943.56 : x
  2. Step 2: Convert to fraction form
    20,505.24/30,794.94 = 18,943.56/x
  3. Step 3: Cross multiply
    20,505.24x = 30,794.94 × 18,943.56
  4. Step 4: Simplify right side
    20,505.24x = 583,365,793.59
  5. Step 5: Solve for x
    x = 583,365,793.59/20,505.24
  6. Step 6: Final answer
    x = 28,449.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.